کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6469012 | 1362331 | 2016 | 10 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Is selective hydrogenation of molecular oxygen to H2O2 affected by strong metal-support interactions on Pd/TiO2 catalysts? A case study using commercially available TiO2 Is selective hydrogenation of molecular oxygen to H2O2 affected by strong metal-support interactions on Pd/TiO2 catalysts? A case study using commercially available TiO2](/preview/png/6469012.png)
In this study, titania-supported Pd catalysts were prepared and their performance evaluated upon H2O2 direct synthesis. Typically, the materials contained different ratios of anatase and rutile phases, which gave rise to different surface properties of the supports, e.g., surface area, number of Lewis acidic and basic sites as well as different compositions of the phases, i.e. the amount of anatase phase and crystallite size. Two materials, Pd-A98 and Pd-A05 samples, respectively, apparently hint the existence of the so-called SMSI (strong metal-support interaction) phenomenon giving rise to 1080 and 683 molH2O2·molPdâ1·hâ1 of H2O2 productivity and 22 and 14% of H2O2 selectivity, respectively. However, the best material, Pd-A82, gave rise to 949 molH2O2·molPdâ1·hâ1 of H2O2 productivity and 26% of H2O2 selectivity.
Journal: Comptes Rendus Chimie - Volume 19, Issue 8, August 2016, Pages 1011-1020